Extending String Functions

programming flash
1

More OOP woes…
Here is what I want to do…extend the String class

 class example extends String {}

and then I want to take things that are already strings and add a function to them which goes through and removes & and turns it back to & am things got some test code for that here


function htmlToString():Void {
  var args:Array = new Array();
  args = this.split("&");
  this = args.join("&");
  args = this.split("'");
  this = args.join("'");
  args = this.split(""");
  this = args.join('"');
  args = this.split("<");
  this = args.join('<');
  args = this.split("&gt;");
  this = args.join('>');
 }

But when I go and compile it I get error msg’s like this